WO2022007830A1

WO2022007830A1 - Transmission mechanism and bicycle

Info

Publication number: WO2022007830A1
Application number: PCT/CN2021/104928
Authority: WO
Inventors: 罗立元
Original assignee: 深圳市南博自动化设备有限公司
Priority date: 2020-07-10
Filing date: 2021-07-07
Publication date: 2022-01-13
Also published as: US20230147034A1

Abstract

A transmission mechanism, comprising: a spindle (1), a power input member (2), a gear assembly (31), and a one-way transmission assembly (4). The gear assembly (31) is provided on the spindle (1); the one-way transmission assembly (4) is sleeved on the spindle (1), the one-way transmission assembly (4) is connected to the power input member (2) and is connected to the gear assembly (31), and the one-way transmission assembly (4) enables the gear assembly (31) to perform unidirectional transmission under the drive of the power input member (2); the gear assembly (31) is transmittingly connected to a power output member, and changes the rotational speed transmitted from the power input member (2) to the power output member; the power input member (2) performs reciprocating motion with the spindle (1) as an axis center to drive the power output member to move. By arrangement of the one-way transmission assembly, the transmission mechanism can perform arc-shaped reciprocating motion, thereby improving the transmission efficiency; further, use of a sector gear assembly, a planetary gear assembly, and a spur gear assembly as a transmission assembly may further improve the transmission efficiency and transmission speed; the transmission mechanism can be applied to a bicycle.

Description

A transmission mechanism and bicycle

technical field

The invention relates to the field of mechanical transmission mechanisms, in particular to a transmission mechanism and a bicycle using the transmission mechanism.

Background technique

Existing bicycles or some vehicles generally use a transmission mechanism that performs circular motion as a power source, but this transmission mechanism has the disadvantages of low transmission efficiency and slow speed due to the transmission of common gear assemblies. The increase in the speed of the tool will generally increase the speed change assembly, and the addition of the speed change assembly will increase the volume of the transmission mechanism, which greatly affects the structural design of the bicycle, and this kind of transmission mechanism for circular motion transmission has the lowest pedal assembly. Rotating the point to the highest point will consume a part of the kinetic energy and affect the transmission efficiency. Therefore, it is necessary to design a transmission mechanism to make the transmission efficiency and speed of the bicycle or vehicle higher, and its structure is relatively compact.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a transmission mechanism and a bicycle aiming at solving the problems of low transmission efficiency and slow speed of the existing transmission mechanism.

In the first aspect, the technical solution adopted by the present invention to solve the technical problem is: including a main shaft, a power input member, and a gear assembly, and the gear assembly is arranged on the main shaft; a one-way transmission assembly is sleeved on the main shaft, and the one-way transmission assembly is The power input member is connected with the gear assembly, and the one-way transmission assembly enables the gear assembly to drive in one direction under the driving of the power input member; wherein, the gear assembly is connected with the power output member in a transmission, changing the rotational speed of the power input member transmitted to the power output member ; The power input member reciprocates with the main shaft as the axis to drive the power output member to move.

Further, the one-way transmission assembly is a one-way bearing or a ratchet assembly.

Further, the gear assembly is a sector-shaped gear assembly, and the sector-shaped gear assembly includes: a sector-shaped gear, which is arranged on the main shaft and rotates with the main shaft as the axis; The gear rotates with the auxiliary shaft as the shaft center; the second gear is arranged on the auxiliary shaft, and the second gear rotates with the auxiliary shaft as the shaft center; the third gear is connected with the second gear in transmission.

Further, the gear assembly is a planetary gear assembly, the main shaft further includes a shaft sleeve, the shaft sleeve is connected with the one-way transmission member, the planetary gear assembly includes: a first planet carrier, the first planet carrier is fixedly connected with the shaft sleeve; the first planet The wheel set is arranged on the first planetary carrier; the ring gear is engaged with the first planetary gear set; the first sun gear is penetrated on the main shaft and is connected with the first planetary gear set and is connected with the power output member.

Further, the gear assembly is a spur gear assembly, the main shaft further includes a shaft sleeve, the shaft sleeve is connected with the one-way transmission member, the spur gear assembly includes: a first gear and a second gear, the first gear and the second gear are passed through the On the main shaft, the second gear is fixedly connected with the shaft sleeve; the third gear is penetrated and fixed on the secondary shaft, and the third gear meshes with the second gear; the fourth gear is penetrated and fixed on the secondary shaft; The fourth gear is fixedly connected or integrally formed with the third gear; the fifth gear is penetrated on the main shaft and is fixedly connected with the first gear, and the fifth gear is meshed with the fourth gear.

Further, it includes a second sun gear, a second planet carrier and a second planetary gear set, the second planetary gear set shares a ring gear with the first planetary gear set, and the second planetary gear set is arranged in the ring gear and meshes with the ring gear, The second sun gear meshes with the first planetary gear set and is fixedly connected with the second planet carrier.

Further, the one-way bearing is divided into an inner ring and an outer ring, wherein the inner ring is connected with the first planet carrier, and the outer ring is connected with the power input member.

Further, the ratchet assembly includes a ratchet wheel, a ratchet disc, and a ratchet, the ratchet is arranged on the ratchet disc, and the ratchet is engaged with the ratchet, wherein the ratchet disc is fixedly connected with the power input member, and the ratchet is fixedly connected with the first planet carrier. .

Further, the ratchet assembly further includes an abutment member, the abutment member is fixed on the ring gear, and the pawl is pressed down by the abutment member to disengage from the engagement with the ratchet teeth when it rotates to the abutment member, so that the ratchet wheel can rotate freely.

Further, it includes another one-way transmission assembly sleeved on the shaft sleeve, the other one-way transmission assembly is connected with another power input member, and the gear assembly is driven to rotate under the driving of the other power input member.

In the second aspect, the present invention also provides a bicycle, comprising a frame, a driving wheel, and the aforementioned transmission mechanism, the driving wheel is mounted on the frame, the power input member is a pedal assembly, and the transmission mechanism is drivingly connected to the driving wheel .

Further, it further includes a reset mechanism, the reset mechanism is connected with the pedal assembly, and drives the pedal assembly to rotate and then reset.

Further, the reset mechanism is an elastic piece, one end of the elastic piece is connected with the frame, and the second end is connected with the pedal assembly.

In a third aspect, the present invention further provides a bicycle, comprising a frame, a driving wheel and the aforementioned transmission mechanism, the driving wheel is mounted on the frame, the power input member is a pedal assembly, and the transmission mechanism is arranged on the driving wheel, And the main shaft of the transmission mechanism is coaxially and fixedly connected with the axle of the driving wheel.

The beneficial effect of the present invention is that, through the one-way transmission assembly, the transmission mechanism can perform arc-shaped reciprocating motion, which can reduce the kinetic energy consumed by ordinary circular motion transmission from the lowest point to the highest point, and improve the transmission efficiency. Further, using the sector gear assembly, the planetary gear assembly and the spur gear assembly as the transmission assembly can further improve the transmission efficiency, and because its transmission ratio is larger than that of the ordinary gear, the speed from the power input member to the power output member is transmitted. It is greatly increased, which can effectively improve the transmission efficiency and speed of the bicycle or other equipment using the transmission mechanism. Furthermore, due to the structural characteristics of the planetary gear, the volume of the transmission mechanism can be reduced, which is helpful to make the transmission mechanism structure. more compact.

Secondly, the transmission mechanism of the present invention is provided on the bicycle, and a reset mechanism is further provided, so the driving mode of the transmission mechanism is to rotate from top to bottom, and then reset by the reset mechanism, so there will be no legs like the traditional bicycle riding. The pedaling arm is zero or close to zero, which leads to the problem of large power loss. Through the force of the transmission mechanism, as well as the supporting action of the bearing seat and the handle, the rider can ride from the bearing seat while riding. The push-up force is obtained from the grip and the grip, so that the power of riding is increased, and the problems of low efficiency and insufficient power of the existing bicycle are effectively solved.

Furthermore, the pedal assembly takes the transmission mechanism as the center of the circle and reciprocates along the outer peripheral surface of the driving wheel, so that the user can ride the bicycle in a standing position, avoiding the impact of comfort due to the seat cushion pressing the buttocks. When riding in a standing position, the user can immediately leave the bicycle, which is safer, and is more convenient and faster than ordinary bicycles when getting off the bicycle normally.

Description of drawings

The specific embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings and examples. In the accompanying drawings:

Fig. 1 is the exploded structure schematic diagram of the transmission mechanism with sector gear assembly of the present invention;

Fig. 2 is the overall structure schematic diagram of the transmission mechanism with spur gear assembly of the present invention;

3 is a schematic diagram of the overall structure of an embodiment of a transmission mechanism with a planetary gear assembly of the present invention;

4 is a schematic exploded structure diagram of an embodiment of a transmission mechanism with a planetary gear assembly of the present invention;

Fig. 5 is the structural representation of the ring gear and the mounting seat of the present invention;

Fig. 6 is the front view structure schematic diagram of one-way bearing;

7 is a schematic structural diagram of the second view of the one-way bearing;

Figure 8 is a schematic structural diagram of a ratchet assembly;

9 is a schematic structural diagram of a second state of the ratchet assembly;

Fig. 10 is the exploded structure schematic diagram of another embodiment of the transmission mechanism with planetary gear assembly of the present invention;

11 is a schematic structural diagram of an embodiment of the pedal assembly;

12 is a schematic diagram of the overall structure of an embodiment of the transmission mechanism of the present invention applied to a bicycle;

13 is a schematic structural diagram of another embodiment of the pedal assembly;

14 is a schematic diagram of the overall structure of another embodiment of the transmission mechanism of the present invention applied to a bicycle;

Figure 15 is a schematic structural diagram of an embodiment of a reset mechanism in a bicycle;

Figure 16 is an enlarged schematic view of the structure of I in Figure 15;

FIG. 17 is a schematic structural diagram of another embodiment of the bicycle reset mechanism.

In the figure: 1, the main shaft; 2, the power input member; 21, the first power input member; 22, the second power input member; 31, the sector gear assembly; 311, the sector gear; 312, the secondary shaft; 313, the first gear 314, second gear; 315, third gear; 316, hub; 32, spur gear assembly; 321, bushing; 322, first gear; 323, second gear; 324, third gear; 325, fourth Gear; 326, fifth gear; 327, countershaft; 33, planetary gear assembly; 331, first planet carrier; 332, first planetary gear set; 333, ring gear; 334, first sun gear; 335, bushing 336, mounting seat; 3311, second sun gear; 3312, second planet carrier; 3313, second planetary gear set; 4, one-way transmission assembly; 41, one-way bearing; 42, ratchet assembly; 421, ratchet; 422, pawl plate; 423, pawl; 424, abutting piece; 43, first one-way transmission assembly; 44, second one-way transmission assembly; 5, power output assembly; 6, pedal assembly; 61, foot pedal; 7, driving wheel; 8, reset structure; 81, elastic piece; 811, adjusting part; 821, first bevel gear; 822, second bevel gear; 823, rotating shaft; 824, third bevel gear.

detailed description

Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principle of the present invention, and are not intended to limit the protection scope of the present invention. The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

The invention provides a transmission mechanism, comprising a main shaft; a power input part; a gear assembly, which is arranged on the main shaft; a one-way transmission assembly sleeved on the main shaft; To the transmission assembly, the gear assembly is driven in one direction by the power input member; wherein, the gear assembly is connected with the power output member in a transmission manner to change the rotational speed transmitted from the power input member to the power output member; the power input member takes the main shaft as the axis The reciprocating motion drives the power output member to move. The one-way drive assembly can be a one-way bearing or a ratchet assembly.

The first embodiment of the present invention, as shown in FIG. 1, includes: a main shaft 1, a power input member 2, a sector gear assembly 31 and a one-way transmission assembly 4. Here, the gear assembly adopts a sector gear assembly 31, and the sector gear assembly 31 It includes a sector gear 311 , a countershaft 312 , a first gear 313 , a second gear 314 and a third gear 315 . The sector gear 311 is arranged on the main shaft 1 , and the sector gear 311 rotates with the main shaft 1 as the axis; The first gear 313 is arranged on the secondary shaft 312 , the first gear 313 meshes with the sector gear 311 , and the first gear 313 rotates around the secondary shaft 312 . The third gear 315 is connected with the hub 316 , and the third gear 315 is in driving connection with the second gear 314 .

In the second embodiment of the present invention, as shown in FIG. 2, the gear assembly adopts a spur gear assembly 32, the main shaft 1 further includes a shaft sleeve 321, the shaft sleeve 321 is connected with the one-way transmission assembly 4, and the spur gear assembly 32 includes: a first Gear 322 , second gear 323 , third gear 324 , fourth gear 325 and fifth gear 326 . The first gear 322 and the second gear 323 pass through the main shaft 1 , and the second gear 323 is fixedly connected to the shaft sleeve 321 ; the third gear 324 passes through and is fixed on the secondary shaft 327 , and the third gear 324 and the second gear 323 meshes; the fourth gear 325 is passed through and fixed on the secondary shaft 327; wherein, the fourth gear 325 is fixedly connected or integrally formed with the third gear 324; the fifth gear 326 is passed through the main shaft 1 and is connected with the first gear 322 In a fixed connection, the fifth gear 326 meshes with the fourth gear 325 .

The third embodiment of the present invention, as shown in FIG. 3 , includes: a main shaft 1, a power input member 2, a planetary gear assembly 33 and a one-way transmission assembly 4. The planetary gear assembly 33 is provided on the main shaft 1; the one-way transmission assembly 4 is sleeved on the main shaft 1, the one-way transmission assembly 4 is connected with the power input member 2 and is connected with the planetary gear assembly 33, and the one-way transmission assembly 4 makes the planetary gear assembly 33 one-way transmission driven by the power input member 2; Among them, the planetary gear assembly 33 is used for driving connection with the power output member 5, and is used to change the rotational speed transmitted from the power input member 2 to the power output member 5; the power input member can reciprocate with the main shaft as the axis to drive the power output member sports.

Through the one-way transmission assembly 4, the transmission mechanism can perform arc-shaped reciprocating motion, which can reduce the kinetic energy consumed by the ordinary circular motion transmission from the lowest point to the highest point, and improve the transmission efficiency. Further, the planetary gear assembly is used. 33, as a transmission component, can further improve the transmission efficiency, and because its transmission ratio is larger than that of ordinary gears, the speed of transmission from the power input member 2 to the power output member 5 is greatly increased, so it can effectively improve the application of the transmission mechanism. The transmission efficiency and speed of a bicycle or other equipment, and due to the structural characteristics of the planetary gear, the volume of the transmission mechanism can be reduced, which helps to make the transmission mechanism more compact.

In the above embodiments, when the gear assembly adopts the planetary gear assembly 33, as shown in FIG. 4 and FIG. 5, the planetary gear assembly 33 includes: a first planet carrier 331, a first planetary gear set 332, a ring gear 333 and a first planetary gear set 332. The sun gear 334, the first planet carrier 331 is drivingly connected with the one-way transmission assembly 4; the first planet carrier 331 is fixedly connected or integrally formed with the shaft sleeve 335; the first planet gear set 332 is arranged on the first planet carrier 331; the ring gear 333 is connected with a mounting seat 336, the mounting seat 336 is used to fix the ring gear 333, and the ring gear 333 meshes with the first planetary gear set 332; , and is used for driving connection with the power output member 5 . Further, in order to increase the speed of the bicycle and meet the riding requirements, the purpose can be achieved by adding a second group of planetary gears. Continue to refer to FIG. 4 , which is a schematic diagram showing a structure with two groups of planetary gears, which includes a second sun gear 3311 , the second planet carrier 3312, the second planetary gear set 3313, the second planetary gear set 3313 and the first planetary gear set 332 share a ring gear 333. At this time, the second planetary gear set 3313 is arranged in the ring gear 333 to mesh with the ring gear 333, the second sun gear 3311 meshes with the first planetary gear set 332 and is fixedly connected to the second planet carrier 3312, so as to realize the The rotational speed transmitted by the planet carrier 331 to the first sun gear 334 is increased, and finally the rotational speed transmitted to the power output member 5 is increased.

As shown in FIGS. 6 and 7 , the one-way transmission assembly 4 is a one-way bearing 41 , and the one-way bearing 41 is divided into an inner ring and an outer ring. The inner ring is fixedly connected with the one-way transmission assembly 4 and the first planet carrier 331 , and the outer ring is connected with the power input member 2 . The one-way bearing 41 is a standard part, which is easy to purchase and assemble.

As shown in Figures 8 and 9, the one-way transmission assembly 4 is a ratchet assembly 42. The ratchet assembly 42 includes a ratchet wheel 421, a ratchet plate 422, and a ratchet 423. The ratchet 423 is provided on the ratchet plate 422. The ratchet 421 is engaged. The ratchet plate 422 is fixedly connected with the power input member 2 , and the ratchet wheel 421 is fixedly connected with the first planet carrier 331 . The ratchet assembly 42 is a standard part, which is easy to purchase and assemble.

Referring to FIG. 9 , the ratchet assembly 42 and the abutting member 424 are shown. The abutting member 424 is fixed on the ring gear 333 . When the pawl 423 rotates to the abutting member 424 , the pawl 423 is pressed down by the abutting member 424 to disengage from the engagement with the ratchet teeth, so that the ratchet wheel 421 can rotate freely. In the existing bicycle with the transmission mechanism performing the fan-shaped rotary motion, when the wheel connected to the transmission mechanism retreats, the transmission mechanism will be driven to rotate backward. However, due to the different design of its structure, this transmission mechanism cannot return Therefore, this kind of bicycle cannot be reversed. In this embodiment, the abutting member 424 is provided, so that the transmission mechanism of the present invention can be reversed. The reverse process of the transmission mechanism of the present invention is as follows: the power input member 2 rotates , drive the pawl 423 on the plate 422 of the pawl 423 to rotate, when the pawl 423 rotates to the contact piece 424, it is pressed down by the abutment piece 424 to disengage from the engagement with the ratchet teeth, so that the ratchet wheel 421 can rotate freely, and then the power The output member 5 can be rotated freely; when it is necessary to re-engage, the power input member 2 is rotated to drive the pawl 423 on the plate 422 of the pawl 423 to rotate, so that the pawl 423 is released from the abutment of the abutting member 424, and the pawl 423 Return engagement with the ratchet.

In the above embodiments, when the gear assembly adopts the spur gear assembly, the transmission mechanism further includes another one-way transmission assembly 4 sleeved on the shaft sleeve 321, and the other one-way transmission assembly 4 is connected with the other power input member 2, Driven by the other power input member 2, the gear assembly is driven to rotate. When the gear assembly adopts the planetary gear assembly, the transmission mechanism further includes another one-way transmission assembly 4 sleeved on the shaft sleeve 335, the other one-way transmission assembly 4 is connected with the other power input member 2, and the other one-way transmission assembly 4 is connected to the other power input member 2. 2 is driven to drive the gear assembly to rotate. Specifically, referring to FIG. 10, the transmission mechanism includes a first one-way transmission assembly 43, a second one-way transmission assembly 44, a first power input member 21 and a second power input member 22. The sleeve 335 is sleeved on the main shaft 1 and is connected with the first one-way transmission assembly 43, which is in turn connected with the first power input member 21; the second one-way transmission assembly 44 is sleeved on the shaft sleeve 335. , the second one-way transmission assembly 44 is connected with the second power input member 22 , and is used to drive the planetary gear assembly 33 for one-way transmission under the driving of the second power input member 22 . By arranging two one-

way transmission assemblies

43 and 44 corresponding to two

power input members

21 and 22 , the transmission mechanism can be alternately transmitted more conveniently, the riding experience can be improved, and the riding efficiency can be improved.

Referring to FIG. 11 and FIG. 12 , it is an embodiment when the transmission mechanism of the present invention is applied to a bicycle. A bicycle includes a frame, a driving wheel, and the above-mentioned transmission mechanism. In this embodiment, the power input member 2 of the transmission mechanism is a pedal assembly 6. In this embodiment, the pedal assembly 6 For 2, the main shaft 1 of the transmission mechanism is directly and fixedly connected to the driving wheel 7; thereby, the driving wheel 7 can be driven to rotate through the repeated cyclic movement of the two pedal assemblies 6, and the driving wheel 7 can be a rear wheel or a The front wheel, the rear wheel in FIG. 12 is taken as an example but not limited thereto. It should be noted here that in addition to the aforementioned frame, driving wheel and transmission mechanism, a general bicycle also includes other components such as a driven wheel relative to the driving wheel, handlebars, brakes, etc. However, since other components are generally known technologies, they are not To repeat.

Please refer to FIG. 13 and FIG. 14, which are the second embodiment of the transmission mechanism of the present invention when applied to a bicycle. In this embodiment, the power input member 2 of the transmission mechanism is also a pedal assembly 6, and the pedal assembly The number of 6 is 2, and the power output member 5 of the transmission mechanism is connected with the driving wheel 7 in a transmission connection, and the transmission connection can be through a transmission connection such as a chain, a belt or a screw, whereby the two pedal assemblies 6 reciprocate. The power output member 5 is driven to rotate, and then the drive wheel 7 is driven to rotate through the power output member 5 . Similarly, the driving wheel 7 can be a front wheel or a rear wheel. In FIG. 14 , the rear wheel is the driving wheel 7 but not limited to this. drive wheel 7.

Please continue to refer to FIG. 14 , in the aforementioned two bicycle embodiments, the pedal assembly 6 may further include a foot cover 61 , and the foot cover 61 is arranged on the pedal assembly 6 , and the pedal assembly can be made by the rider's feet. 6 Complete the reset.

Please refer to FIG. 15 and FIG. 16. In this embodiment, a reset mechanism 8 is further included. The reset mechanism 8 is connected with the pedal assembly 6 to drive the pedal assembly to rotate and then reset. The reset mechanism 8 is an elastic member 81. The elastic member One end of 81 is connected to the frame, and the second end is connected to the pedal assembly 6 . The cyclic driving and resetting of the footrest assembly 6 can also be simply realized by the stretching and resetting of the elastic member 81 . Further, the elastic member 81 is provided with an adjustment portion 811, and the adjustment portion 811 is connected with the elastic member 81. By adjusting the position of the adjustment portion 811, the elastic force of the elastic member 81 can be changed. After a long period of use, the elastic force of the elastic member 81 Therefore, the adjusting portion 811 needs to be provided to adjust the elastic force of the elastic member 81 , so that the elastic force of the elastic member 81 can complete the reset of the pedal assembly 6 .

Referring to FIG. 17, in another embodiment of the reset mechanism 8, it may include: a first bevel gear 821, a second bevel gear 822, a rotating shaft 823, a third bevel gear 824, and the first bevel gear 821 is sleeved set and fixed on a pedal assembly 6; the second bevel gear 822 is sleeved and fixed on the other pedal assembly 6; the rotating shaft 823 is set on the frame; the third bevel gear 824 is passed through the rotating shaft 823, At the same time, it meshes with the first bevel gear 821 and the second bevel gear 822; wherein, the third bevel gear 824 makes the rotation directions of the two pedal assemblies 6 opposite. In this embodiment, the reset mechanism 8 is a gear linkage reset mechanism. When the reset mechanism 8 is used, the initial positions of the two pedal assemblies 6 are set in opposite directions, one of the pedal assemblies 6 is located at the starting end of the rotation stroke, the other The pedal assemblies 6 are located at the end of the rotation stroke. Therefore, when riding, one pedal assembly 6 rotates in the forward direction, and the other pedal assembly 6 rotates in the reverse direction, so that the two pedal assemblies 6 can be rotated cyclically.

Specifically, the transmission mechanism of the present invention can also be applied to water bicycles, pedal boats, electric bicycles, scooters and exercise bicycles. For details, please refer to the application methods applied to bicycles in FIGS. 11-14 , which are not listed here. enumerate. Any of the above pedal power tools using the transmission mechanism in this embodiment falls within the protection scope of the present invention.

It should be understood that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them. For those skilled in the art, the technical solutions recorded in the above embodiments can be modified, or some of the technical features can be modified. Equivalent replacements are made; and all such modifications and replacements shall fall within the protection scope of the appended claims of the present invention.

Claims

A transmission mechanism, characterized in that, comprising:

main shaft;

power input;

a gear assembly, arranged on the main shaft;

A one-way transmission assembly is sleeved on the main shaft, the one-way transmission assembly is connected with the power input member and is connected with the gear assembly, and the one-way transmission assembly enables the gear assembly in the power input One-way transmission driven by parts;

Wherein, the gear assembly is drivingly connected with the power output member to change the rotational speed transmitted from the power input member to the power output member;

The power input member reciprocates with the main shaft as the axis to drive the power output member to move.
The transmission mechanism according to claim 1, wherein the one-way transmission assembly is a one-way bearing or a ratchet assembly.
The transmission mechanism according to claim 2, wherein the gear assembly is a sector gear assembly, and the sector gear assembly comprises:

a sector gear, which is arranged on the main shaft and rotates with the main shaft as the axis;

a secondary shaft, which is connected with the sector gear;

a first gear, which is arranged on the secondary shaft, the first gear meshes with the sector gear, and the first gear rotates around the secondary shaft;

a second gear, which is arranged on the secondary shaft, and the second gear rotates around the secondary shaft;

The third gear is in driving connection with the second gear.
The transmission mechanism according to claim 2, wherein the gear assembly is a planetary gear assembly, the main shaft further comprises a shaft sleeve, the shaft sleeve is connected with the one-way transmission member, and the planetary gear Components include:

a first planet carrier, the first planet carrier is fixedly connected with the shaft sleeve;

a first planetary gear set, which is arranged on the first planet carrier;

a ring gear meshing with the first planetary gear set;

The first sun gear is pierced on the main shaft and is in driving connection with the first planetary gear set, and is in driving connection with the power output member.
The transmission mechanism according to claim 2, wherein the gear assembly is a spur gear assembly, the main shaft further comprises a shaft sleeve, the shaft sleeve is connected with the one-way transmission member, and the spur gear Components include:

a first gear and a second gear, the first gear and the second gear are penetrated on the main shaft, and the second gear is fixedly connected with the shaft sleeve;

a third gear, which is passed through and fixed on the secondary shaft, the third gear meshes with the second gear;

a fourth gear, which is passed through and fixed on the secondary shaft;

Wherein, the fourth gear and the third gear are fixedly connected or integrally formed;

a fifth gear, which is penetrated on the main shaft and is fixedly connected with the first gear, and the fifth gear meshes with the fourth gear.
The transmission mechanism according to claim 4, characterized in that it comprises a second sun gear, a second planet carrier and a second planetary gear set, and the second planetary gear set shares the teeth with the first planetary gear set The second planetary gear set is arranged in the ring gear to mesh with the ring gear, the second sun gear meshes with the first planetary gear set and is fixedly connected to the second planet carrier.
The transmission mechanism according to claim 4, wherein the one-way bearing is divided into an inner ring and an outer ring, wherein the inner ring is connected with the first planet carrier, and the outer ring is connected with the power input connection.
The transmission mechanism according to claim 4, wherein the ratchet assembly comprises a ratchet wheel, a ratchet disc, and a ratchet, the ratchet is arranged on the ratchet disc, and the ratchet engages with the ratchet. , wherein the ratchet plate is fixedly connected with the power input member, and the ratchet wheel is fixedly connected with the first planet carrier.
The transmission mechanism according to claim 8, wherein the ratchet assembly further comprises an abutment member, the abutment member is fixed on the ring gear, and the pawl rotates to the abutment member When pressed down by the abutting member, it is disengaged from the engagement with the ratchet, so that the ratchet can rotate freely.
The transmission mechanism according to any one of claims 4-9, characterized in that it comprises another one-way transmission assembly sleeved on the shaft sleeve, and the other one-way transmission assembly is connected with another power input member , the gear assembly is driven to rotate under the driving of the other power input member.
A bicycle, characterized in that it comprises a frame, a driving wheel, and a transmission mechanism according to any one of claims 1-10, wherein the driving wheel is mounted on the frame, and the power input member is a foot A pedal assembly, the transmission mechanism is drivingly connected with the driving wheel.
The bicycle according to claim 11, further comprising a reset mechanism, the reset mechanism is connected with the pedal assembly, and drives the pedal assembly to rotate and then reset.
The bicycle according to claim 12, wherein the reset mechanism is an elastic member, one end of the elastic member is connected with the frame, and the second end is connected with the pedal assembly.
A bicycle, characterized in that it comprises a frame, a driving wheel and the transmission mechanism according to any one of claims 1-10, the driving wheel is mounted on the frame, and the power input member is a pedal The transmission mechanism is arranged on the driving wheel, and the main shaft of the transmission mechanism is coaxially and fixedly connected with the axle of the driving wheel.